sucky /ˈsʌki/adjective 3noun 3forms 3 adjective3 •Suitable for sucking •(slang) Being something which sucks, which is unpleasant or inferior.That comedian was pretty sucky on TV last night. •(slang) Tending to suck up or ingratiate oneself.Oh no, you'll spoil her, too much sugar is bad for them. / Surely one won't hurt, just this once, Mildred. / And sucky Janine: Oh yes, can I Ma'am, please? — 1985 noun3 •(informal) A pacifier. •(slang, vulgar) A fellation, a blowjob.Like postman I am pat Gave a sucky then i spat — 2019 •(slang, vulgar) A fellatrix, a blowjobber. formssuckies · suckier · suckiest